SureFire Devastator Millennium Tactical 350 Lumens Max Flashlight, OD Hard Anodized - M4-CB 2.5-inch diameter Turbohead reflector for tight beam and extended-range illumination Rugged aerospace-grade aluminum body, Mil-Spec Type III hard anodized in olive drab Max Output: 225/350* lumens Runtime: 60/20* minutes Tailcap switch: push for momentary on, twist for constant on